Can someone tell me if my answers are correct?
A machine makes a special type of lining brick at the rate of 25 per hour. Overall about 5% of the bricks are
The probability that no defective bricks are produced in any one hour?
Now this is a poisson distributions so i used the calculated by using the calculator function
poissonpdf(1.25,0) = 0.2865
however answer is 0.2774
the probability that two defective bricks are produced in any one hour?
poissonpdf(1.25,2) = 0.2238
however answer is 0.2305
the probability that at least one defective brick is produced in the next hour?
not sure about this one